package wh.环形链表;

/**
 * 自定义单链表节点
 */
public class ListNode {
    int val;
    ListNode next;
    public ListNode() {
    }
    public ListNode(int val) { this.val = val; }
    public ListNode(int val, ListNode next) {
        this.val = val;
        this.next = next;
    }
}
